sonic-buildimage/device/centec/arm64-centec_e530_48t4x_p-r0/platform_reboot

#!/usr/bin/python

def main():
    # reboot the system
    with open('/sys/class/gpio/export', 'w') as file:
        file.write('502\n')
    with open('/sys/class/gpio/gpio502/direction', 'w') as file:
        file.write('out\n')
    with open('/sys/class/gpio/gpio502/value', 'w') as file:
        file.write('1\n')

if __name__ == "__main__":
    main()